It's still distribution tubing - strictly for one or two plants. Pros that use that stuff might run a ring of it around a larger plant, but they don't run long lengths of it. Use larger diameters for that.

It can be used very effectively by ringing individual plants planted around a house or running up to 15' lengths in a small bed. I am certain it is not used frequently by professionals because it is labor intensive and most home owners will not foot the bill.